feat: support rpc protx-register for descriptor wallets - part VI

[knst]

Issue being fixed or feature implemented

Many rpc such as protx register uses forcely LegacyScriptPubKeyMan instead using CWallet's interface.
It causes a failures such as

test_framework.authproxy.JSONRPCException: This type of wallet does not support this command (-4)

for all functional tests that uses Masternodes/evo nodes.

See https://github.com/dashpay/dash-issues/issues/59 to track progress

What was done?

Some direct usages of LegacyScriptPubKeyMan refactored to use CWallet's functionality.
There are still 4 functional tests that doesn't work for descriptor wallets:

• feature_dip3_deterministicmns.py (no rpc protx updateregistar)
• feature_governance.py: no rpc for governance votemany and governance votealias
• interface_zmq_dash.py (see governance)

That's part I of changes, other changes are not PR-ready yet, WIP.

How Has This Been Tested?

Firstly, the flag --legacy-wallets are removed for many functional tests.
Secondly, the flag --descriptors is inverted in default value:

diff --git a/test/functional/test_framework/test_framework.py b/test/functional/test_framework/test_framework.py
index 585a6a74d6..9ad5fd1daa 100755
--- a/test/functional/test_framework/test_framework.py
+++ b/test/functional/test_framework/test_framework.py
@@ -242,10 +242,10 @@ class BitcoinTestFramework(metaclass=BitcoinTestMetaClass):
 
         if self.options.descriptors is None:
             # Prefer BDB unless it isn't available
-            if self.is_bdb_compiled():
-                self.options.descriptors = False
-            elif self.is_sqlite_compiled():
+            if self.is_sqlite_compiled():
                 self.options.descriptors = True
+            elif self.is_bdb_compiled():
+                self.options.descriptors = False
             else:
                 # If neither are compiled, tests requiring a wallet will be skipped and the value of self.options.descriptors won't matter
                 # It still needs to exist and be None in order for tests to work however.

Breaking Changes

N/A, descriptor wallets have not been publicly released yet

Checklist:

• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have added or updated relevant unit/integration/functional/e2e tests
• I have made corresponding changes to the documentation
• I have assigned this pull request to a milestone

[github-actions]

This pull request has conflicts, please rebase.

[UdjinM6]

utACK

[PastaPastaPasta]

utACK a33dcb3